Tamer Mohamed Elsaied Elkhodragy <br/><br/>
Optimum design of earthing system of high voltage substations by using artificial neural network /  
 التصميم الامثل لنظم التأريض فى محطات الجهد العالى بإستخدام الخلايا العصبية الصناعية 
Tamer Mohamed Elsaied Elkhodragy ; Supervised Ossama Elsaid Gouda , Ghada Mohamed Amer 
 - Cairo :   Tamer Mohamedelsaiedelkhodragy ,   2007 
 - 166P :   ill ;   30cm 
<br/><br/>Thesis (PH.D.) - Cairo University - Faculty Of Engineering - Department Of Electrical Power and Machines 
<br/><br/> The present work is focused towards developing artificial neural network to evaluate design parameters of ground system for the predetermined grounding resistance value and soil resistivity without need of complex calculations These ANN are used to select the optimum dimensions and geometry of grounding system required for obtaining satisfactory ground resistance , and step and touch potentials Also ANN is used to select the optimum compression ratio for uniform soil and two layer soils 
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<br/><br/><label>Subjects--Index Terms: </label>high voltage substations Optimum design